Total Assets by Reportable Segment (Detail) (USD $) In Millions	Sep. 30, 2011		Dec. 31, 2010
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 3,798.2		$ 3,418.0
Commercial aircraft
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,305.8	[1]	1,131.9	[1]
Consumables management
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,179.0	[1]	2,014.8	[1]
Business jet
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 313.4	[1]	$ 271.3	[1]

[1] Corporate assets (including cash and cash equivalents) of $237.6 and $123.8 at September 30, 2011 and December 31, 2010, respectively, have been allocated to the above segments based on each segment's respective percentage of total assets.